This announcement represents disconnection or interruption of the probe's cable.

Check device

This announcement means no message from the detector arrived to the cloud for a period over 9 hours.
This condition can be caused by the detector's malfunction, loss of connection between the detector and
AP (increase of signal attenuation for WiFi signal, AP power supply malfunction of interruption)
or interruption of AP connection to the Internet.

Low batteries

When the battery capacity drops below 20%, this symbol will be displayed and an announcement for battery replacement sent.